My baby has colic, what do I do???

My son is 7 weeks old and he has the tendency to cry non-stop for 4-5 hours every other day or so. It is like going through hell; we try everything to sooth him and nothing works, just when you think it worked, you put him down and he starts up again!!! There has to be something out there that will work for this horrible problem. Tried the myilcon drops, work for about 15 minutes, tried swaddling, rocking, swaying, etc. Please help, My wife and I are losing our minds!!